Structure of a miniaturized high power speaker

Abstract

A structure of a miniaturized high power speaker is mainly composed of a vibrator and a magnetic loop assembly. The vibrator includes a voice coil set, a diaphragm and a flange. The magnetic loop assembly includes a thin magnet set, a thick magnet set and a magnetic base. According to this structure, the miniaturized high power speaker of the invention can specifically present the loudness of voice and the extension of the low frequency band and can withstand multiple times of the input power without distortion. Also, the speaker can simplify the assembling trouble and difficulty during the mass production so that the smooth effectiveness may be kept and the excellent precision can be obtained.

What is claimed is: 
     
         1 . A structure of a miniaturized high power speaker being composed of a vibrator and a magnetic loop assembly, wherein:
 the vibrator comprises:
 a voice coil set having a cylindrical voice coil frame, one lateral circumference formed with projecting and opposite lead-out portions, and another lateral circumference wound with a copper wire, wherein each of the lead-out portions is bonded to a conductive terminal and adhered to an inner wall of a guide-out tube with the terminal being exposed out of an edge of the guide-out tube; 
 a diaphragm, which is composed of an elastic film and a light metal, and is adhered to the voice coil set; and 
 a flange which is a circular hollow frame body made of a metal material, wherein the voice coil set may be embedded into the circular hollow frame body and adhered to the diaphragm; and 
   the magnetic loop assembly comprises:
 a thin magnet set composed of a thin magnet and a thin washer having a central hole, wherein the thin magnet and the thin washer are pressed and adhered together and are magnetized to have a strong magnetic force; 
 a thick magnet set composed of a thick magnet and a thick washer having a central hole, wherein the thick magnet and the thick washer are pressed and adhered together, and are magnetized to have another strong magnetic force; and 
 a magnetic base, which is a circular outer cover having a central hole, wherein the thick magnet set and the thin magnet set are sequentially disposed in the central hole of the circular outer cover concentrically. 
   
     
     
         2 . The structure according to  claim 1 , wherein the voice coil frame is a flexible plastic film having a TT pattern before it is shaped. 
     
     
         3 . The structure according to  claim 1 , wherein the copper wire wound around the voice coil frame has a multi-layered and overlapped pattern. 
     
     
         4 . The structure according to  claim 1 , wherein the thick and thin magnet sets are embedded in the magnetic base and are separated from a circumferential wall of the magnetic base by a gap.